Journal ArticleDOI
Fourier analysis of the light curves of eclipsing variables, XII
TLDR
In this paper, the fractional loss of light αl0 of arbitrarily limb-darkened stars in the form of Hankel transforms of zero order is evaluated in terms of expansions that converge under all circumstances envisaged.Abstract:
The aim of the present paper will be to make use of the expressions, established in Paper XI, for the fractional loss of light αl0 of arbitrarily limb-darkened stars in the form of Hankel transforms of zero order, in order to evaluate the explicit forms of the αl0's for different types of eclipses (Section 2), as well as of the momentsA2mof the respective light curves (Section 3)-in a closed form; or in terms of expansions that converge under all circumstances envisaged. Particular attention will be directed to a connection between these expansions and other functions already available in tabular form; or to alternative forms amenable to automatic computation.read more
Citations
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Journal ArticleDOI
Fourier analysis of the light curves of eclipsing variables, XIV
Zdeněk Kopal,Osman Demircan +1 more
TL;DR: In this paper, the authors used the results obtained in the preceding papers for the development of practical procedures for obtaining the elements of any eclipsing system from the observed photometric data by their analysis in the frequency-domain, for any type of eclipses, any proximity of the two components, and any degree of the law of limbdarkening of the eclipsed star.
Journal ArticleDOI
New photoelectric observations of four W UMa systems: OO Aql, V839 Oph, V566 Oph, and SW Lac
S. J. Lafta,J. F. Grainger +1 more
TL;DR: The W UMa-type systems (OO Aql, V839 Oph, V566 Oph and SW Lac) were observed photoelectrically in two wavebands (B and V) during the years 1982-1983 as discussed by the authors.
Journal ArticleDOI
Computation of the elements of close eclipsing systems in the frequency-domain
TL;DR: In this article, the authors generalize the methods for computing the elements of eclipsing binary systems in the frequency domain to the case of close systems, in which photometric proximity effects become conspicuous and must be taken into account before the methods previously outlined in Paper I become directly applicable.
Journal ArticleDOI
An analysis of the light changes of eclipsing variables in the frequency-domain: Practical aspects
TL;DR: In this article, the authors present a survey of the main practical aspects of the analysis of the light changes of eclipsing binary systems in the frequency-domain, and point out the advantages of such a process over the time-domain approach.
References
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Journal ArticleDOI
Table errata: Tables of integral transforms, Vol. II (McGraw-Hill Book Co., New York, 1954) by A. Erdelyi, W. Magnus, F. Oberhettinger & F. G. Tricomi
Ann Scherzinger,Don Secrest +1 more
Journal ArticleDOI
Fourier analysis of the light curves of eclipsing variables. I
TL;DR: In this article, a new approach to the analysis of the light changes of eclipsing binary systems in the frequency domain is proposed, and the authors point out its merits in comparison with a conventional treatment of the same problem in the time domain.